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| author | Carlos Eduardo Gallo Filho <gcarlos@disroot.org> | 2024-09-10 21:15:31 -0300 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2024-09-11 14:17:09 +0200 |
| commit | 1bb74f6cc3d593fff7c96314ec4901a4055cbf17 (patch) | |
| tree | 43c054dcd19f00eb35bc8c038a20c423a3c1926d /drivers/gpu/drm/tests | |
| parent | 49cdbcbad6142bd738d27cbd8dc063ac9a35a464 (diff) | |
| download | linux-1bb74f6cc3d593fff7c96314ec4901a4055cbf17.tar.gz linux-1bb74f6cc3d593fff7c96314ec4901a4055cbf17.tar.bz2 linux-1bb74f6cc3d593fff7c96314ec4901a4055cbf17.zip | |
drm/tests: Add test for drm_framebuffer_cleanup()
Add a single KUnit test case for the drm_framebuffer_cleanup function.
Signed-off-by: Carlos Eduardo Gallo Filho <gcarlos@disroot.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240911001559.28284-7-gcarlos@disroot.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/tests')
| -rw-r--r-- | drivers/gpu/drm/tests/drm_framebuffer_test.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tests/drm_framebuffer_test.c b/drivers/gpu/drm/tests/drm_framebuffer_test.c index 1924e3f9538e..908583d74b20 100644 --- a/drivers/gpu/drm/tests/drm_framebuffer_test.c +++ b/drivers/gpu/drm/tests/drm_framebuffer_test.c @@ -498,8 +498,40 @@ check_src_coords_test_to_desc(const struct drm_framebuffer_check_src_coords_case KUNIT_ARRAY_PARAM(check_src_coords, drm_framebuffer_check_src_coords_cases, check_src_coords_test_to_desc); +/* + * Test if drm_framebuffer_cleanup() really pops out the framebuffer object + * from device's fb_list and decrement the number of framebuffers for that + * device, which is the only things it does. + */ +static void drm_test_framebuffer_cleanup(struct kunit *test) +{ + struct drm_framebuffer_test_priv *priv = test->priv; + struct drm_device *dev = &priv->dev; + struct list_head *fb_list = &dev->mode_config.fb_list; + struct drm_format_info format = { }; + struct drm_framebuffer fb1 = { .dev = dev, .format = &format }; + struct drm_framebuffer fb2 = { .dev = dev, .format = &format }; + + /* This will result on [fb_list] -> fb2 -> fb1 */ + drm_framebuffer_init(dev, &fb1, NULL); + drm_framebuffer_init(dev, &fb2, NULL); + + drm_framebuffer_cleanup(&fb1); + + /* Now fb2 is the only one element on fb_list */ + KUNIT_ASSERT_TRUE(test, list_is_singular(&fb2.head)); + KUNIT_ASSERT_EQ(test, dev->mode_config.num_fb, 1); + + drm_framebuffer_cleanup(&fb2); + + /* Now fb_list is empty */ + KUNIT_ASSERT_TRUE(test, list_empty(fb_list)); + KUNIT_ASSERT_EQ(test, dev->mode_config.num_fb, 0); +} + static struct kunit_case drm_framebuffer_tests[] = { KUNIT_CASE_PARAM(drm_test_framebuffer_check_src_coords, check_src_coords_gen_params), + KUNIT_CASE(drm_test_framebuffer_cleanup), KUNIT_CASE_PARAM(drm_test_framebuffer_create, drm_framebuffer_create_gen_params), KUNIT_CASE(drm_test_framebuffer_modifiers_not_supported), { } |